ferrous oxide

noun

Chemistry.

1. a black powder, FeO, insoluble in water, soluble in acid.

ferrous oxide

1. A black powder used to make steel, green heat-absorbing glass, and enamels. Chemical formula: FeO.

Word History and Origins

Origin of ferrous oxide¹

First recorded in 1870–75

Example Sentences

Amused and enchanted, I named him "Ferrous" for the chemical name of rust, hydrated ferrous oxide.

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Lawrence Weiner’s “Cadmium & Mud & Titanium & Lead & Ferrous Oxide & So On …” was first displayed as part of his solo exhibition “Displacement,” at Dia Center for the Arts in New York City in 1991.

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Staurolite, stawr′ō-līt, n. a silicate of alumina with ferrous oxide, magnesia, and water, crystallising in trimetric forms, common as twinned cruciform crystals in certain states.—adj.

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Ferrous oxide produces an olive green or a pale blue according to the glass with which it is mixed.

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Manganese dioxide not only acts as a source of oxygen, but develops a pink tint in the glass, which is complementary to and neutralizes the green colour due to ferrous oxide.

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